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首页> 外文期刊>Organisms, diversity, & evolution >Ecological patterns strongly impact the biogeography of western Palaearctic longhorn beetles (Coleoptera: Cerambycoidea)
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Ecological patterns strongly impact the biogeography of western Palaearctic longhorn beetles (Coleoptera: Cerambycoidea)

机译：生态格局强烈影响西古北长角甲虫（鞘翅目：Cerambycoidea）的生物地理学

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摘要

We aim to unravel the biogeographic structuring of western Palaearctic longhorn beetles with focus on the location of different refugia, barriers to dispersal and postglacial range expansions with their particular filters. The interaction of different ecological features with these structures is analysed. The western Palaearctic was divided into 95 geographic entities. We produced presence-only matrices for all 955 Cerambycoidea species autochthonous to this area and derived species richness distributions and extracted faunal regions and faunal elements by cluster analyses and principal component analyses. Similar analyses were performed for sub-families and ecological groups. Longhorn beetles show a strong biogeographic structuring in the western Palaearctic. Species numbers strongly decrease to the north and west. Less mobile species and root feeders mostly contribute to the fauna of the Mediterranean region, whilst mobile species are more widespread. Feeders on broad-leaved trees dominate in western Europe, whilst feeders on coniferous trees are most important in northern Europe. Our results support multiple refugia in the Mediterranean region and underline the importance of Provence, Crimea and Crete as such refugia. Crete even might be an area of old endemism. The Atlanto- and the Ponto-Mediterranean regions are more strongly structured than assumed in classical biogeography. Mediterranean assemblages are mostly composed of non-flying species, root feeders and species with small distributions not found outside their glacial refugia. Tree feeders left their glacial retreats with their host plants. These range dynamics result in biogeographic structures with several dispersal barriers and filters composed of mountains, sea straits and climatic conditions.
机译：我们的目标是揭示西古北长角甲虫的生物地理结构，重点关注不同避难所的位置、扩散障碍和冰期后范围的扩张及其特定的过滤器。分析了不同生态特征与这些结构的相互作用。西古北界被划分为95个地理实体。我们制作了该地区本土所有 955 个 Cerambycoidea 物种的仅存在矩阵，并通过聚类分析和主成分分析得出物种丰富度分布并提取了动物区和动物元素。对亚科和生态群体进行了类似的分析。长角甲虫在古北纪西部表现出很强的生物地理结构。北部和西部的物种数量大幅减少。流动性较差的物种和根系食性动物主要为地中海地区的动物群做出贡献，而流动性物种则分布更广。阔叶树的喂食器在西欧占主导地位，而针叶树的喂食器在北欧最为重要。我们的研究结果支持地中海地区的多个避难所，并强调了普罗旺斯、克里米亚和克里特岛作为避难所的重要性。克里特岛甚至可能是一个古老的特有地区。大西洋和蓬托-地中海地区的结构比经典生物地理学中假设的更强。地中海组合主要由非飞行物种、根系食性动物和在其冰川避难所之外没有发现的分布较小的物种组成。树木喂食者带着寄主植物离开了冰川隐居地。这些范围动态导致了生物地理结构，这些结构具有由山脉、海峡和气候条件组成的若干扩散屏障和过滤器。

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